A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL. The file type is application/pdf.
application/pdf
"IN THE MATTER OF LETTERS PATENT GRANTED TO GEORGE HEPPLE COWEN AND FRANK HEWITT." Reports of Patent Design and Trade Mark Cases 60.5 (1943) 82-84